BROOKFIELD YR-1 RHEOMETER Operating Instructions Manual ...

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APPENDIX H - Fault Diagnosis and TroubleshootingListed are some of the more common problems that you may encounter while using your YR-1Rheometer.❏ Spindle Does Not Rotate✓ Make sure the rheometer is plugged in.✓ Check the voltage rating on your rheometer (115, 220V); it must match the AC supply voltage.✓ Make sure the motor is ON and the desired rpm is selected.❏ Spindle Wobbles When Rotating or Looks Bent✓ Make sure the spindle is tightened securely to the rheometer coupling.✓ Check the straightness of spindle vanes; replace spindle if bent or warped.✓ Inspect rheometer coupling and spindle coupling mating areas and threads for dirt; cleanthreads on spindle coupling with a 3/56 left-hand tap.✓ Inspect threads for wear; if the threads are worn, the unit needs service (see Appendex I).Check to see if spindles rotate eccentrically or wobble. There is an allowable runout of 1/32-inch in each direction (1/16-inch total) when measured from the bottom of the spindle rotatingin air.✓ Check to see if the rheometer coupling appears bent; if so, the unit is in need of service (seeAppendix I, “How to Return Your Rheometer”).If you continue to experience problems with your rheometer, follow this troubleshooting section tohelp isolate potential problems.❏ Perform an Oscillation Check✓ Press and hold the and arrow keys simultaneously while turning the rheometer powerON. When prompted with CAL VERIFICATION on the display, use the arrow keysto select YES, then press the ENTER key. Ensure no spindle is attached before Autozeroing.✓ With the rheometer set to zero (0) rpm, gently push up on the rheometer coupling.✓ Turn the coupling until the display % torque reads 10-15.✓ Gently let go of the coupling.✓ Watch the display; you should see the torque value return to 0.0 (+/- 0.1).If the digital display does not return to ZERO, the unit is in need of service (see Appendix I, “Howto Return Your Rheometer”).Brookfield Engineering Labs., Inc. Page 44 Manual No. M/02-215
❏ Inaccurate Readings✓ Verify spindle, speed and model selection.✓ Verify that % Torque readings are greater than or equal to 10%.✓ Verify test parameters: Yield Test Parameters, container, volume and method. Refer toAppendix C, “Variables in Yield Measurements”.✓ Perform a calibration check; follow the instructions in Appendix B, “Calibration Procedures”.✓ Verify tolerances are calculated correctly.If the unit is found to be out of tolerance, the unit may be in need of service. See Appendix I fordetails on “How to Return Your Rheometer”.❏ Rheometer Will Not Return to Zero✓ Rheometer is not level• Check with spindle out of the sample• Adjust the laboratory stand✓ Pivot point or jewel bearing faulty• Perform calibration check. See Appendix C, “Calibration Procedures”.• Contact Brookfield Engineering Laboratories, Inc. or your Brookfield dealer for repair❏ Display Reading Will Not Stabilize✓ Rheometer is not level• Check with spindle out of the sample• Adjust the laboratory stand✓ Special characteristic of sample fluid. There is no problem with the rheometer.✓ Check for erratic spindle rotation.• Verify power supply• Contact Brookfield Engineering Laboratories, Inc. or your Brookfield dealer for repair✓ Bent spindle or spindle coupling.• Contact Brookfield Engineering Laboratories, Inc. or your Brookfield dealer for repair✓ Temperature fluctuation in sample fluid• Use temperature bath control.Brookfield Engineering Labs., Inc. Page 45 Manual No. M/02-215
Page 1: BROOKFIELD YR-1 RHEOMETEROperating
Page 9: Once the sample is prepared and the
Page 15 and 16: II.6.2.3 User-Defined Limit Conditi
Page 17 and 18: III.3 Test Parameter DescriptionIII
Page 19 and 20: III.4.2 OpenSelecting Open (using t
Page 21 and 22: Save ReportLoad ReportDisplays the
Page 23 and 24: III.5.1 Pre-shearingPre-shearing is
Page 25 and 26: Data is displayed on the right of t
Page 27 and 28: Double-clicking on either graph enl
Page 29 and 30: IV.EXAMPLESSome users may download
Page 31 and 32: APPENDIX A - Spindle and Model Code
Page 33 and 34: APPENDIX C - Calibration Procedures
Page 35 and 36: REMOVE SPINDLEPRESS ANY KEYFigure C
Page 37 and 38: APPENDIX D - CalculationsThe follow
Page 39 and 40: APPENDIX E - Communications1. Seria
Page 41 and 42: APPENDIX F - Model S Laboratory Sta
Page 43: APPENDIX G - DVE-50 Probe ClipProbe
Page 47 and 48: Press the ENTER key and Figure H2 a
Page 49 and 50: Packaging Instructions to Return a

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